#include <string>

struct Class{
    std::string id;
    int mass;
    float diameter;
    std::list<int> color;
    
    Class();
    Class(const std::string& id, int mass, float diameter)
        :id(id),
         mass(mass),
         diameter(diameter)
    {       
    }
    
    void addColor(int col){
        color.push_back(col);
    }
    
    
    
};
